Serbian Astronomical Journal (Dec 2010)

Multifrequency Radio Observations of a SNR in the LMC. The Case of SNR J0527-6549 (DEM L204)

  • Bozzetto, L. M.,
  • Filipovic, M. D.,
  • Crawford, E. J.,
  • Bojicic, I. S.,
  • Payne, J. L.,
  • Medik, A.,
  • Wardlaw, B.,
  • De Horta, A. Y.

Journal volume & issue
Vol. 181
pp. 43 – 49

Abstract

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We present a detailed study and results of new Australia Telescope Compact Array (ATCA) observations of supernova remnant SNR J0527-6549. This Large Magellanic Cloud (LMC) object follows a typical supernova remnant (SNR) horseshoe morphology with a diameter of D=(66$imes$58)$pm$1~pc which is among the largest SNRs in the LMC. Its relatively large size indicates older age while a steeper than expected radio spectral index of $alpha$=-0.92$pm$0.11 is more typical of younger and energetic SNRs. Also, we report detections of regions with a high order of polarization at a peak value of $sim$ 54 per cent $pm$ 17 per cent at 6~cm.

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